Home / 12,162.64-18,245.45-4,158.73

Finding the Fourth Proportional to 12,162.64, 18,245.45 and 4,158.73

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Solution

The fourth proportional to 12,162.64, 18,245.45 and 4,158.73 is: 6,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162.64 : 18,245.45 = 4,158.73 : x
  2. Step 2: Convert to fraction form
    12,162.64/18,245.45 = 4,158.73/x
  3. Step 3: Cross multiply
    12,162.64x = 18,245.45 × 4,158.73
  4. Step 4: Simplify right side
    12,162.64x = 75,877,900.28
  5. Step 5: Solve for x
    x = 75,877,900.28/12,162.64
  6. Step 6: Final answer
    x = 6,238.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.